And I know the US spiritual figure Ken Wilber has influenced everyone from Bill Clinton to leading philosopher Charles Taylor to the Bishop of London to Geoff Mulgan - who once urged a room full of the UK government's future strategists to attempt to put Wilber's (spiritual-based) ‘Integral' model into practice in their future policies.

The RSA (and other organisations including IPPR) have even done empirical research using Maslow-based ‘Values Modes', which includes a ‘Transcender' motivation, which is presumably based on the Self-transcendence needs that Maslow put at the top of his hierarchy of needs (around the time he was helping to found the ‘Transpersonal Psychology' approach, which includes the spirituality).